code: def valid_session_config():
      return {
          "DefaultS3Bucket": "sagemaker-python-sdk-test-bucket",
          "DefaultS3ObjectKeyPrefix": "test-prefix",
      }
  
imports: from __future__ import absolute_import
  import os
  import pytest
  from mock import MagicMock
label_desc: Use image node_id 5 for calling a global function with example usage: valid_session_config() and returns: dict